Cross-discontinuous reception group channel state information reporting

ABSTRACT

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine whether a flag is enabled or is disabled, the flag indicating whether channel state information (CSI) associated with a secondary discontinuous reception (DRX) group is permitted to be transmitted outside of an active time associated with a primary DRX group. The UE may selectively transmit the CSI associated with the secondary DRX group in an uplink communication associated with the primary DRX group based at least in part on whether the flag is enabled or is disabled. Numerous other aspects are provided.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a divisional of U.S. patent application Ser. No.17/211,604, filed Mar. 24, 2021, “CROSS-DISCONTINUOUS RECEPTION GROUPCHANNEL STATE INFORMATION REPORTING,” which claims priority to U.S.Provisional Patent Application No. 63/000,929, filed on Mar. 27, 2020,entitled “CROSS-DISCONTINUOUS RECEPTION GROUP CHANNEL STATE INFORMATIONREPORTING,” the contents of which are incorporated herein by referencein their entireties.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wirelesscommunication and to techniques and apparatuses for cross-discontinuousreception (DRX) group channel state information (CSI) reporting.

BACKGROUND

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (e.g., bandwidth,transmit power, or the like). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

A wireless network may include a number of base stations (BSs) that cansupport communication for a number of user equipment (UEs). A UE maycommunicate with a BS via the downlink and uplink. The downlink (orforward link) refers to the communication link from the BS to the UE,and the uplink (or reverse link) refers to the communication link fromthe UE to the BS. As will be described in more detail herein, a BS maybe referred to as a Node B, a gNB, an access point (AP), a radio head, atransmit receive point (TRP), a New Radio (NR) BS, a 5G Node B, or thelike.

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent user equipment to communicate on a municipal, national,regional, and even global level. NR, which may also be referred to as5G, is a set of enhancements to the LTE mobile standard promulgated bythe 3GPP. NR is designed to better support mobile broadband Internetaccess by improving spectral efficiency, lowering costs, improvingservices, making use of new spectrum, and better integrating with otheropen standards using orthogonal frequency division multiplexing (OFDM)with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL), using CP-OFDMand/or SC-FDM (e.g., also known as discrete Fourier transform spreadOFDM (DFT-s-OFDM)) on the uplink (UL), as well as supportingbeamforming, multiple-input multiple-output (MIMO) antenna technology,and carrier aggregation. As the demand for mobile broadband accesscontinues to increase, further improvements in LTE, NR, and other radioaccess technologies remain useful.

SUMMARY

In some aspects, a method of wireless communication, performed by a userequipment, may include determining whether a flag is enabled or isdisabled, the flag indicating whether channel state information (CSI)associated with a secondary discontinuous reception DRX group ispermitted to be transmitted outside of an active time associated with aprimary DRX group; and selectively transmitting the CSI associated withthe secondary DRX group in an uplink communication associated with theprimary DRX group based at least in part on whether the flag is enabledor is disabled.

In some aspects, a method of wireless communication, performed by a userequipment, may include determining that CSI associated with a secondaryDRX group is to be multiplexed with uplink control information (UCI)outside of an active time associated with a primary DRX group; andtransmitting an uplink communication in a physical uplink controlchannel (PUCCH) associated with the primary DRX group based at least inpart on determining that the CSI is to be multiplexed with UCI outsideof the active time associated with the primary DRX group, wherein theuplink communication includes at least the CSI associated with thesecondary DRX group.

In some aspects, a user equipment (UE) for wireless communication mayinclude a memory and one or more processors operatively coupled to thememory. The memory and the one or more processors may be configured todetermine whether a flag is enabled or is disabled, the flag indicatingwhether CSI associated with a secondary DRX group is permitted to betransmitted outside of an active time associated with a primary DRXgroup; and selectively transmit the CSI associated with the secondaryDRX group in an uplink communication associated with the primary DRXgroup based at least in part on whether the flag is enabled or isdisabled.

In some aspects, a UE for wireless communication may include a memoryand one or more processors operatively coupled to the memory. The memoryand the one or more processors may be configured to determine that CSIassociated with a secondary DRX group is to be multiplexed with UCIoutside of an active time associated with a primary DRX group; andtransmit an uplink communication in a PUCCH associated with the primaryDRX group based at least in part on determining that the CSI is to bemultiplexed with UCI outside of the active time associated with theprimary DRX group, wherein the uplink communication includes at leastthe CSI associated with the secondary DRX group.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a UE, may causethe one or more processors to determine whether a flag is enabled or isdisabled, the flag indicating whether CSI associated with a secondaryDRX group is permitted to be transmitted outside of an active timeassociated with a primary DRX group; and selectively transmit the CSIassociated with the secondary DRX group in an uplink communicationassociated with the primary DRX group based at least in part on whetherthe flag is enabled or is disabled.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a UE, may causethe one or more processors to determine that CSI associated with asecondary DRX group is to be multiplexed with UCI outside of an activetime associated with a primary DRX group; and transmit an uplinkcommunication in a PUCCH associated with the primary DRX group based atleast in part on determining that the CSI is to be multiplexed with UCIoutside of the active time associated with the primary DRX group,wherein the uplink communication includes at least the CSI associatedwith the secondary DRX group.

In some aspects, an apparatus for wireless communication may includemeans for determining whether a flag is enabled or is disabled, the flagindicating whether CSI associated with a secondary DRX group ispermitted to be transmitted outside of an active time associated with aprimary DRX group; and means for selectively transmitting the CSIassociated with the secondary DRX group in an uplink communicationassociated with the primary DRX group based at least in part on whetherthe flag is enabled or is disabled.

In some aspects, an apparatus for wireless communication may includemeans for determining that CSI associated with a secondary DRX group isto be multiplexed with UCI outside of an active time associated with aprimary DRX group; and means for transmitting an uplink communication ina PUCCH associated with the primary DRX group based at least in part ondetermining that the CSI is to be multiplexed with UCI outside of theactive time associated with the primary DRX group, wherein the uplinkcommunication includes at least the CSI associated with the secondaryDRX group.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, basestation, wireless communication device, and/or processing system assubstantially described herein with reference to and as illustrated bythe drawings and specification.

The foregoing has outlined rather broadly the features and technicaladvantages of examples according to the disclosure in order that thedetailed description that follows may be better understood. Additionalfeatures and advantages will be described hereinafter. The conceptionand specific examples disclosed may be readily utilized as a basis formodifying or designing other structures for carrying out the samepurposes of the present disclosure. Such equivalent constructions do notdepart from the scope of the appended claims. Characteristics of theconcepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purposesof illustration and description, and not as a definition of the limitsof the claims.

While aspects are described in the present disclosure by illustration tosome examples, those skilled in the art will understand that suchaspects may be implemented in many different arrangements and scenarios.Techniques described herein may be implemented using different platformtypes, devices, systems, shapes, sizes, and/or packaging arrangements.For example, some aspects may be implemented via integrated chipembodiments or other non-module-component based devices (e.g., end-userdevices, vehicles, communication devices, computing devices, industrialequipment, retail/purchasing devices, medical devices, or artificialintelligence-enabled devices). Aspects may be implemented in chip-levelcomponents, modular components, non-modular components, non-chip-levelcomponents, device-level components, or system-level components. Devicesincorporating described aspects and features may include additionalcomponents and features for implementation and practice of claimed anddescribed aspects. For example, transmission and reception of wirelesssignals may include a number of components for analog and digitalpurposes (e.g., hardware components including antenna, RF chains, poweramplifiers, modulators, buffer, processor(s), interleaver, adders, orsummers). It is intended that aspects described herein may be practicedin a wide variety of devices, components, systems, distributedarrangements, or end-user devices of varying size, shape, andconstitution.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can beunderstood in detail, a more particular description, briefly summarizedabove, may be had by reference to aspects, some of which are illustratedin the appended drawings. It is to be noted, however, that the appendeddrawings illustrate only certain typical aspects of this disclosure andare therefore not to be considered limiting of its scope, for thedescription may admit to other equally effective aspects. The samereference numbers in different drawings may identify the same or similarelements.

FIG. 1 is a diagram illustrating an example of a wireless network, inaccordance with the present disclosure.

FIG. 2 is a diagram illustrating an example of a base station incommunication with a user equipment (UE) in a wireless network, inaccordance with the present disclosure.

FIGS. 3A, 3B, and 4 are diagrams illustrating examples associated withcross-discontinuous reception (DRX) group channel state information(CSI) reporting, in accordance with the present disclosure.

FIG. 5 is a diagram illustrating an example process performed, forexample, by a user equipment, in accordance with the present disclosure.

FIG. 6 is a diagram illustrating an example process performed, forexample, by a user equipment, in accordance with the present disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafterwith reference to the accompanying drawings. This disclosure may,however, be embodied in many different forms and should not be construedas limited to any specific structure or function presented throughoutthis disclosure. Rather, these aspects are provided so that thisdisclosure will be thorough and complete, and will fully convey thescope of the disclosure to those skilled in the art. Based on theteachings herein, one skilled in the art should appreciate that thescope of the disclosure is intended to cover any aspect of thedisclosure disclosed herein, whether implemented independently of orcombined with any other aspect of the disclosure. For example, anapparatus may be implemented or a method may be practiced using anynumber of the aspects set forth herein. In addition, the scope of thedisclosure is intended to cover such an apparatus or method which ispracticed using other structure, functionality, or structure andfunctionality in addition to or other than the various aspects of thedisclosure set forth herein. It should be understood that any aspect ofthe disclosure disclosed herein may be embodied by one or more elementsof a claim.

Several aspects of telecommunication systems will now be presented withreference to various apparatuses and techniques. These apparatuses andtechniques will be described in the following detailed description andillustrated in the accompanying drawings by various blocks, modules,components, circuits, steps, processes, algorithms, or the like(collectively referred to as “elements”). These elements may beimplemented using hardware, software, or combinations thereof. Whethersuch elements are implemented as hardware or software depends upon theparticular application and design constraints imposed on the overallsystem.

It should be noted that while aspects may be described herein usingterminology commonly associated with a 5G or NR radio access technology(RAT), aspects of the present disclosure can be applied to other RATs,such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G).

FIG. 1 is a diagram illustrating an example of a wireless network 100,in accordance with the present disclosure. The wireless network 100 maybe or may include elements of a 5G (NR) network and/or an LTE network,among other examples. The wireless network 100 may include a number ofbase stations 110 (shown as BS 110 a, BS 110 b, BS 110 c, and BS 110 d)and other network entities. A base station (BS) is an entity thatcommunicates with user equipment (UEs) and may also be referred to as anNR BS, a Node B, a gNB, a 5G node B (NB), an access point, a transmitreceive point (TRP), or the like. Each BS may provide communicationcoverage for a particular geographic area. In 3GPP, the term “cell” canrefer to a coverage area of a BS and/or a BS subsystem serving thiscoverage area, depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, and/or another type of cell. A macro cell may cover arelatively large geographic area (e.g., several kilometers in radius)and may allow unrestricted access by UEs with service subscription. Apico cell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (e.g., a home) and may allowrestricted access by UEs having association with the femto cell (e.g.,UEs in a closed subscriber group (CSG)). A BS for a macro cell may bereferred to as a macro BS. A BS for a pico cell may be referred to as apico BS. A BS for a femto cell may be referred to as a femto BS or ahome BS. In the example shown in FIG. 1 , a BS 110 a may be a macro BSfor a macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102b, and a BS 110 c may be a femto BS for a femto cell 102 c. A BS maysupport one or multiple (e.g., three) cells. The terms “eNB”, “basestation”, “NR BS”, “gNB”, “TRP”, “AP”, “node B”, “5G NB”, and “cell” maybe used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some aspects, the BSs may be interconnected to one anotherand/or to one or more other BSs or network nodes (not shown) in thewireless network 100 through various types of backhaul interfaces, suchas a direct physical connection or a virtual network, using any suitabletransport network.

Wireless network 100 may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (e.g., a BS or a UE) and send a transmission of the data to adownstream station (e.g., a UE or a BS). A relay station may also be aUE that can relay transmissions for other UEs. In the example shown inFIG. 1 , a relay BS 110 d may communicate with macro BS 110 a and a UE120 d in order to facilitate communication between BS 110 a and UE 120d. A relay BS may also be referred to as a relay station, a relay basestation, a relay, or the like.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, such as macro BSs, pico BSs, femto BSs, relay BSs, orthe like. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impacts on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relayBSs may have lower transmit power levels (e.g., 0.1 to 2 watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs may also communicatewith one another, e.g., directly or indirectly via a wireless orwireline backhaul.

UEs 120 (e.g., 120 a, 120 b, 120 c) may be dispersed throughout wirelessnetwork 100, and each UE may be stationary or mobile. A UE may also bereferred to as an access terminal, a terminal, a mobile station, asubscriber unit, a station, or the like. A UE may be a cellular phone(e.g., a smart phone), a personal digital assistant (PDA), a wirelessmodem, a wireless communication device, a handheld device, a laptopcomputer, a cordless phone, a wireless local loop (WLL) station, atablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook,a medical device or equipment, biometric sensors/devices, wearabledevices (smart watches, smart clothing, smart glasses, smart wristbands, smart jewelry (e.g., smart ring, smart bracelet)), anentertainment device (e.g., a music or video device, or a satelliteradio), a vehicular component or sensor, smart meters/sensors,industrial manufacturing equipment, a global positioning system device,or any other suitable device that is configured to communicate via awireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, sensors, meters,monitors, and/or location tags, that may communicate with a basestation, another device (e.g., remote device), or some other entity. Awireless node may provide, for example, connectivity for or to a network(e.g., a wide area network such as Internet or a cellular network) via awired or wireless communication link. Some UEs may be consideredInternet-of-Things (IoT) devices, and/or may be implemented as NB-IoT(narrowband internet of things) devices. Some UEs may be considered aCustomer Premises Equipment (CPE). UE 120 may be included inside ahousing that houses components of UE 120, such as processor componentsand/or memory components. In some aspects, the processor components andthe memory components may be coupled together. For example, theprocessor components (e.g., one or more processors) and the memorycomponents (e.g., a memory) may be operatively coupled, communicativelycoupled, electronically coupled, and/or electrically coupled.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular RAT andmay operate on one or more frequencies. A RAT may also be referred to asa radio technology, an air interface, or the like. A frequency may alsobe referred to as a carrier, a frequency channel, or the like. Eachfrequency may support a single RAT in a given geographic area in orderto avoid interference between wireless networks of different RATs. Insome cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120 a and UE 120e) may communicate directly using one or more sidelink channels (e.g.,without using a base station 110 as an intermediary to communicate withone another). For example, the UEs 120 may communicate usingpeer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (e.g., which mayinclude a vehicle-to-vehicle (V2V) protocol or avehicle-to-infrastructure (V2I) protocol), and/or a mesh network. Inthis case, the UE 120 may perform scheduling operations, resourceselection operations, and/or other operations described elsewhere hereinas being performed by the base station 110.

Devices of wireless network 100 may communicate using theelectromagnetic spectrum, which may be subdivided based on frequency orwavelength into various classes, bands, channels, or the like. Forexample, devices of wireless network 100 may communicate using anoperating band having a first frequency range (FR1), which may span from410 MHz to 7.125 GHz, and/or may communicate using an operating bandhaving a second frequency range (FR2), which may span from 24.25 GHz to52.6 GHz. The frequencies between FR1 and FR2 are sometimes referred toas mid-band frequencies. Although a portion of FR1 is greater than 6GHz, FR1 is often referred to as a “sub-6 GHz” band. Similarly, FR2 isoften referred to as a “millimeter wave” band despite being differentfrom the extremely high frequency (EHF) band (30 GHz-300 GHz) which isidentified by the International Telecommunications Union (ITU) as a“millimeter wave” band. Thus, unless specifically stated otherwise, itshould be understood that the term “sub-6 GHz” or the like, if usedherein, may broadly represent frequencies less than 6 GHz, frequencieswithin FR1, and/or mid-band frequencies (e.g., greater than 7.125 GHz).Similarly, unless specifically stated otherwise, it should be understoodthat the term “millimeter wave” or the like, if used herein, may broadlyrepresent frequencies within the EHF band, frequencies within FR2,and/or mid-band frequencies (e.g., less than 24.25 GHz). It iscontemplated that the frequencies included in FR1 and FR2 may bemodified, and techniques described herein are applicable to thosemodified frequency ranges.

As indicated above, FIG. 1 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 1 .

FIG. 2 is a diagram illustrating an example 200 of a base station 110 incommunication with a UE 120 in a wireless network 100, in accordancewith the present disclosure. Base station 110 may be equipped with Tantennas 234 a through 234 t, and UE 120 may be equipped with R antennas252 a through 252 r, where in general T≥1 and R≥1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, select one or more modulation andcoding schemes (MCS) for each UE based at least in part on channelquality indicators (CQIs) received from the UE, process (e.g., encodeand modulate) the data for each UE based at least in part on the MCS(s)selected for the UE, and provide data symbols for all UEs. Transmitprocessor 220 may also process system information (e.g., for semi-staticresource partitioning information (SRPI)) and control information (e.g.,CQI requests, grants, and/or upper layer signaling) and provide overheadsymbols and control symbols. Transmit processor 220 may also generatereference symbols for reference signals (e.g., a cell-specific referencesignal (CRS) or a demodulation reference signal (DMRS)) andsynchronization signals (e.g., a primary synchronization signal (PSS) ora secondary synchronization signal (SSS)). A transmit (TX)multiple-input multiple-output (MIMO) processor 230 may perform spatialprocessing (e.g., precoding) on the data symbols, the control symbols,the overhead symbols, and/or the reference symbols, if applicable, andmay provide T output symbol streams to T modulators (MODs) 232 a through232 t. Each modulator 232 may process a respective output symbol stream(e.g., for OFDM) to obtain an output sample stream. Each modulator 232may further process (e.g., convert to analog, amplify, filter, andupconvert) the output sample stream to obtain a downlink signal. Tdownlink signals from modulators 232 a through 232 t may be transmittedvia T antennas 234 a through 234 t, respectively.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 and/or other base stations and may providereceived signals to demodulators (DEMODs) 254 a through 254 r,respectively. Each demodulator 254 may condition (e.g., filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (e.g., forOFDM) to obtain received symbols. A MIMO detector 256 may obtainreceived symbols from all R demodulators 254 a through 254 r, performMIMO detection on the received symbols if applicable, and providedetected symbols. A receive processor 258 may process (e.g., demodulateand decode) the detected symbols, provide decoded data for UE 120 to adata sink 260, and provide decoded control information and systeminformation to a controller/processor 280. The term“controller/processor” may refer to one or more controllers, one or moreprocessors, or a combination thereof. A channel processor may determinea reference signal received power (RSRP) parameter, a received signalstrength indicator (RSSI) parameter, a reference signal received quality(RSRQ) parameter, and/or a CQI parameter, among other examples. In someaspects, one or more components of UE 120 may be included in a housing284.

Network controller 130 may include communication unit 294,controller/processor 290, and memory 292. Network controller 130 mayinclude, for example, one or more devices in a core network. Networkcontroller 130 may communicate with base station 110 via communicationunit 294.

Antennas (e.g., antennas 234 a through 234 t and/or antennas 252 athrough 252 r) may include, or may be included within, one or moreantenna panels, antenna groups, sets of antenna elements, and/or antennaarrays, among other examples. An antenna panel, an antenna group, a setof antenna elements, and/or an antenna array may include one or moreantenna elements. An antenna panel, an antenna group, a set of antennaelements, and/or an antenna array may include a set of coplanar antennaelements and/or a set of non-coplanar antenna elements. An antennapanel, an antenna group, a set of antenna elements, and/or an antennaarray may include antenna elements within a single housing and/orantenna elements within multiple housings. An antenna panel, an antennagroup, a set of antenna elements, and/or an antenna array may includeone or more antenna elements coupled to one or more transmission and/orreception components, such as one or more components of FIG. 2 .

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (e.g., forreports that include RSRP, RSSI, RSRQ, and/or CQI) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (e.g.,for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In someaspects, a modulator and a demodulator (e.g., MOD/DEMOD 254) of the UE120 may be included in a modem of the UE 120. In some aspects, the UE120 includes a transceiver. The transceiver may include any combinationof antenna(s) 252, modulators and/or demodulators 254, MIMO detector256, receive processor 258, transmit processor 264, and/or TX MIMOprocessor 266. The transceiver may be used by a processor (e.g.,controller/processor 280) and memory 282 to perform aspects of any ofthe methods described herein, for example, as described with referenceto FIGS. 3A, 3B, 4, 5 , or 6.

At base station 110, the uplink signals from UE 120 and other UEs may bereceived by antennas 234, processed by demodulators 232, detected by aMIMO detector 236 if applicable, and further processed by a receiveprocessor 238 to obtain decoded data and control information sent by UE120. Receive processor 238 may provide the decoded data to a data sink239 and the decoded control information to controller/processor 240.Base station 110 may include communication unit 244 and communicate tonetwork controller 130 via communication unit 244. Base station 110 mayinclude a scheduler 246 to schedule UEs 120 for downlink and/or uplinkcommunications. In some aspects, a modulator and a demodulator (e.g.,MOD/DEMOD 232) of the base station 110 may be included in a modem of thebase station 110. In some aspects, the base station 110 includes atransceiver. The transceiver may include any combination of antenna(s)234, modulators and/or demodulators 232, MIMO detector 236, receiveprocessor 238, transmit processor 220, and/or TX MIMO processor 230. Thetransceiver may be used by a processor (e.g., controller/processor 240)and memory 242 to perform aspects of any of the methods describedherein, for example, as described with reference to FIGS. 3A-3B, 4, 5 or6 .

Controller/processor 240 of base station 110, controller/processor 280of UE 120, and/or any other component(s) of FIG. 2 may perform one ormore techniques associated with cross-discontinuous reception (DRX)group channel state information (CSI) reporting, as described in moredetail elsewhere herein. For example, controller/processor 240 of basestation 110, controller/processor 280 of UE 120, and/or any othercomponent(s) of FIG. 2 may perform or direct operations of, for example,process 500 of FIG. 5 , process 600 of FIG. 6 , and/or other processesas described herein. Memories 242 and 282 may store data and programcodes for base station 110 and UE 120, respectively. In some aspects,memory 242 and/or memory 282 may include a non-transitorycomputer-readable medium storing one or more instructions (e.g., codeand/or program code) for wireless communication. For example, the one ormore instructions, when executed (e.g., directly, or after compiling,converting, and/or interpreting) by one or more processors of the basestation 110 and/or the UE 120, may perform or direct operations of, forexample, process 500 of FIG. 5 , process 600 of FIG. 6 , and/or otherprocesses as described herein. In some aspects, executing instructionsmay include running the instructions, converting the instructions,compiling the instructions, and/or interpreting the instructions, amongother examples.

In some aspects, UE 120 may include means for determining whether a flagis enabled or is disabled, the flag indicating whether CSI associatedwith a secondary DRX group is permitted to be transmitted outside of anactive time associated with a primary DRX group; means for selectivelytransmitting the CSI associated with the secondary DRX group in anuplink communication associated with the primary DRX group based atleast in part on whether the flag is enabled or is disabled; and/or thelike. In some aspects, such means may include one or more components ofUE 120 described in connection with FIG. 2 , such ascontroller/processor 280, transmit processor 264, TX MIMO processor 266,MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor258, and/or the like.

In some aspects, UE 120 may include means for determining that CSIassociated with a secondary DRX group is to be multiplexed with uplinkcontrol information (UCI) outside of an active time associated with aprimary DRX group; means for transmitting an uplink communication in aphysical uplink control channel (PUCCH) associated with the primary DRXgroup based at least in part on determining that the CSI is to bemultiplexed with UCI outside of the active time associated with theprimary DRX group, wherein the uplink communication includes at leastthe CSI associated with the secondary DRX group; and/or the like. Insome aspects, such means may include one or more components of UE 120described in connection with FIG. 2 , such as controller/processor 280,transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252,DEMOD 254, MIMO detector 256, receive processor 258, and/or the like.

While blocks in FIG. 2 are illustrated as distinct components, thefunctions described above with respect to the blocks may be implementedin a single hardware, software, or combination component or in variouscombinations of components. For example, the functions described withrespect to the transmit processor 264, the receive processor 258, and/orthe TX MIMO processor 266 may be performed by or under the control ofcontroller/processor 280.

As indicated above, FIG. 2 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 2 .

A DRX configuration is typically defined per medium access control (MAC)entity. The DRX configuration may include, for example, informationassociated with one or more types of DRX cycle (e.g., short and/orlong), information associated with an on-duration timer (e.g.,drx-onDurationTimer), information associated with an inactivity timer(e.g., drx-InactivityTimer), or the like. Generally, DRX configurationsare defined using subcarrier spacing (SCS) independent values (e.g., aparameter of a DRX configuration can be defined in terms of millisecondsrather than a number of slots).

In some wireless communication systems, a single DRX configuration maybe configured. However, in some cases, the use of a single DRXconfiguration may be undesirable. For example, in a carrier aggregationscenario in an NR system, component carriers used for wirelesscommunications can be in different frequency ranges and have differentnumerologies. As a particular example, a first set of component carriersused for wireless communications may be in FR1, while a second set ofcomponent carriers used for wireless communications may be in FR2. Insuch a case, power consumption characteristics and/or latency/throughputcharacteristics can vary across the component carriers. Thus, when asingle DRX configuration is used across these component carriers havingdifferent characteristics, a power saving versus scheduling flexibility(latency/throughput) tradeoff across the component carriers isrestricted.

To address this issue, in some wireless communication systems, anotherDRX configuration can be configured (i.e., multiple DRX configurationscan be configured). For example, a primary DRX configuration and asecondary DRX configuration can be configured. In such a case, one ormore parameters may differ between the primary and secondary DRXconfigurations. For example, inactivity and on-duration timersassociated with the primary DRX configuration may be different from(e.g., longer than) inactivity and on-duration timers associated withthe secondary DRX configuration. In a scenario in which componentcarriers are FR1 and FR2, the primary DRX configuration can be used forcomponent carriers in FR1 and the secondary DRX configuration can beused for component carriers in FR2 in order to alleviate theabove-described restriction on the power saving versus schedulingflexibility tradeoff.

A set of component carriers (e.g., in FR1) that uses a primary DRXconfiguration may be referred to as a primary DRX group (PDG). Theprimary DRX group may, for example, be power efficient and may be usedfor control data and relatively low-rate/latency-tolerant traffic. A setof component carriers (e.g., in FR2) that uses a secondary DRXconfiguration may be referred to as a secondary DRX group (secondary DRXgroup). The secondary DRX group may, for example, have high powerconsumption and may be used for high-rate/urgent traffic. In such ascenario, it is desirable that an active time associated with thesecondary DRX group is shorter than an active time associated with theprimary DRX group (e.g., for the purpose of power saving). For powerefficient operation, the secondary DRX group may be used (e.g., stay inDRX active time) only when there is demand, and may remain in DRX mode(e.g., outside active time) otherwise. This can in some instances beachieved by configuring timers associated with the secondary DRX group(e.g., a drx-onDurationTimer and a drx-InactivityTimer associated withthe secondary DRX configuration) to be shorter than those associatedwith the primary DRX group (e.g., a drx-onDurationTimer and adrx-InactivityTimer associated with the primary DRX configuration).

However, if DRX processes of the primary DRX group and the secondary DRXgroup are completely independent, an active time associated with thesecondary DRX group is not always guaranteed to be shorter than anactive time associated with the primary DRX group. For example, eventhough the timers used by the secondary DRX group (e.g., the timersassociated with the secondary DRX configuration) may be shorter thanthose used by the primary DRX group (e.g., the timers associated withthe primary DRX configuration), extension of an active time associatedwith a given DRX group (e.g., by starting/restarting of adrx-InactivityTimer) depends on traffic in the given DRX group. Sincethe primary DRX group may be used for signals such as paging, systeminformation, slot-format indication, wake-up/secondary cell dormancyindication, and/or the like, as well as UCI such as CSI (e.g., when asingle PUCCH configuration is to be used for all DRX groups), it isdesirable to ensure that the primary DRX group is in active time at alltimes during which the secondary DRX group is in active time.

If a primary DRX group is not in active time at all times during which asecondary DRX group is in active time, reporting of some information,such as CSI associated with the secondary DRX group, may be impacted,which results in secondary DRX group resources being wasted. Forexample, a primary DRX group and a secondary DRX group may be in a samePUCCH group (e.g., such that the two DRX groups are to use a singlePUCCH configuration that indicates PUCCH resources on a cell in theprimary DRX group). If the primary DRX group is in active time at alltimes during which the secondary DRX group is in active time, CSIdetermined based on a measurement at a previous measurement occasion(e.g., a measurement occasion within a most recent active time of thesecondary DRX group) can be sent over the PUCCH in the primary DRXgroup. Notably, in this case, a measurement occasion associated with thesecondary DRX group that is outside of the active time associated withthe secondary DRX group may not be used (i.e., no measurement may beperformed). Conversely, if the primary DRX group is not in active timeat a given time during which the secondary DRX group is in active time,even though a measurement associated with determining CSI can beperformed on the secondary DRX group during the active time associatedwith the secondary DRX group, the CSI cannot be sent on the primary DRXgroup (e.g., since the primary DRX group is outside of active time),meaning that resources used for performing the measurement anddetermining the CSI associated with the secondary DRX group are wasted.

Some aspects described herein provide techniques and apparatuses forcross-DRX group CSI reporting. In some aspects, a UE may determinewhether a flag is enabled or is disabled, where the flag indicateswhether CSI associated with a secondary DRX group is permitted to betransmitted outside of an active time associated with a primary DRXgroup. In some aspects, based at least in part on whether the flag isenabled or disabled, the UE may selectively transmit the CSI associatedwith the secondary DRX group in an uplink communication associated withthe primary DRX group. Additional details are described below.

In some aspects, to further improve power efficiency, it may bedesirable to multiplex CSI associated with a secondary DRX group withother UCI when reporting the CSI outside of an active time associatedwith a primary DRX group. In some aspects, a UE may determine that theCSI associated with the secondary DRX group is to be multiplexed withUCI outside of an active time associated with the primary DRX group, andmay transmit an uplink communication in a PUCCH associated with theprimary DRX group based at least in part on this determination. Here,the uplink communication may include at least the CSI associated withthe secondary DRX group. Additional details are described below.

FIGS. 3A and 3B are diagrams illustrating examples associated withcross-DRX group CSI reporting, in accordance with the presentdisclosure. In the examples associated with FIGS. 3A and 3B, a UE (e.g.,a UE 120) is configured to use a primary DRX group (e.g., one or morecomponent carriers in FR1) associated with a primary DRX configurationand a secondary DRX group (e.g., one or more component carriers in FR2)associated with a secondary DRX configuration. Further, the primary DRXgroup and the secondary DRX group are associated with a single PUCCHconfiguration (e.g., a PUCCH configuration that indicates resources on acell in the primary DRX group that are to be used for providing uplinkcontrol information).

As shown in FIG. 3A by reference 302, the UE may receive (e.g., from abase station 110) a configuration associated with a flag and/or anindication to enable or to disable the flag. In some aspects, the flagis an indicator that signals whether information associated with thesecondary DRX group is permitted to be transmitted at a particular time.In some aspects, the flag may be a one bit indicator. As an example, insome aspects, the flag may be an indicator that signals whether CSI(e.g., periodic CSI, semi-persistent CSI, or the like) associated withthe secondary DRX group is permitted to be transmitted outside of anactive time associated with the primary DRX group. Here, when the flagis enabled (e.g., when a bit associated with the flag is set to a valueof 1), the flag may indicate that CSI associated with the secondary DRXgroup is permitted to be transmitted outside of an active timeassociated with the primary DRX group. Conversely, when the flag isdisabled (e.g., when the bit associated with the flag is set to a valueof 0), the flag may indicate that CSI associated with the secondary DRXgroup is not permitted to be transmitted outside of an active timeassociated with the primary DRX group.

In some aspects, the flag may be configured per UE (e.g., a single flagmay be used for all secondary DRX groups configured on the UE).Alternatively, in some aspects, the flag may be configured per DRX group(e.g., such that different flags are used for different secondary DRXgroups configured on the UE).

In some aspects, the flag may be configured based at least in part on UEcapability information provided by the UE (e.g., capability informationindicating that the UE supports use of the flag). In some aspects, theflag may be configured based at least in part on a request transmittedby the UE (e.g., a request through assistance information feedback).

In some aspects, the use of the flag may be conditional to the singlePUCCH configuration. That is, in some aspects, the use of the flag todetermine whether CSI associated with the secondary DRX group ispermitted to be transmitted outside of an active time associated withthe primary DRX group may be conditioned on the primary DRX group andthe secondary DRX group being associated with a single PUCCHconfiguration (e.g., such that CSI associated with the secondary DRXgroup is to be provided in PUCCH resources in the primary DRX group).

In some aspects, the UE may receive the configuration of the flag or theindication associated with enabling or disabling the flag via, forexample, radio resource control (RRC) signaling, a MAC control element(MAC-CE), downlink control information (DCI), or the like.

As shown by reference 304, the UE may determine whether the flag isenabled or is disabled. In some aspects, the UE may determine whetherthe flag is enabled or disabled at or before a measurement occasionassociated with the secondary DRX group. Additionally, in some aspects,the UE may determine whether the flag is enabled or disabled after adetermination of whether an uplink communication occasion (e.g., a PUCCHoccasion) associated with reporting CSI determined based at least inpart on a measurement at the measurement is within an active time of theprimary DRX group. Further, in some aspects, the UE may determinewhether the flag is enabled or disabled after a determination of whethera primary DRX group is in an active time or is within a threshold amountof time from an end of an active time.

For example, at a measurement occasion with the secondary DRX group, theUE may determine whether an uplink communication occasion (e.g., a PUCCHoccasion) associated with reporting CSI determined based at least inpart on a measurement at the measurement occasion is within an activetime of the primary DRX group (or is within a threshold amount of timefrom an end of an active time). Here, if the uplink communicationoccasion associated with the measurement occasion is outside of anactive time associated with the primary DRX group (i.e., if the primaryDRX group will not be in an active time at the uplink communication) andif the uplink communication occasion associated with the measurementoccasion is within a threshold amount of time from an end of an activetime associated with the primary DRX group, then the UE may determinewhether the flag is enabled or is disabled (e.g., since in this case CSIwould need to be provided after the end of the active time associatedwith the primary DRX group). In some aspects, the UE may determinewhether the flag is enabled or is disabled based at least in part on anindication from the base station, as described above.

Continuing with the above example, if the flag is enabled (e.g.,indicating that CSI associated with the secondary DRX group can beprovided outside of an active time associated with the primary DRXgroup), then the UE may proceed with performing a measurement anddetermining CSI associated with the secondary DRX group. Conversely, ifthe flag is disabled (e.g., indicating that CSI associated with thesecondary DRX group cannot be provided outside of an active timeassociated with the primary DRX group), then the UE may refrain fromperforming a measurement and determining CSI associated with thesecondary DRX group, thereby conserving secondary DRX group resources.In a case in which the uplink communication occasion associated with themeasurement occasion is within an active time associated with theprimary DRX group (i.e., if the primary DRX group is in an active time),then the UE may skip the determination of whether the flag is enabled oris disabled (e.g., since in this case the CSI would be provided duringthe active time associated with the primary DRX group) and may proceedwith performing a measurement and determining CSI associated with thesecondary DRX group.

As shown by reference 306, the UE may selectively transmit CSIassociated with the secondary DRX group in an uplink communication(e.g., a PUCCH communication) associated with the primary DRX groupbased at least in part on whether the flag is enabled or is disabled.

In some aspects, when the flag is enabled, selectively transmitting theCSI associated with the secondary DRX group in the uplink communicationassociated with the primary DRX group includes transmitting the CSI inthe uplink communication. In some aspects, the CSI associated with thesecondary DRX group may be transmitted during an active time associatedwith the secondary DRX group. That is, when the flag is enabled, CSIreporting (e.g., in a PUCCH) is allowed on the primary DRX group (i.e.,on a PUCCH carrier) outside of an active time of the primary DRX groupif the secondary DRX group is in an active time (i.e., PUCCH occasionsfor CSI reporting can be extended outside of active time). In someaspects, in association with transmitting the CSI in the uplinkcommunication (e.g., a PUCCH communication), the UE may perform awake-up associated with the primary DRX group at a PUCCH occasion.Notably, outside of an active time associated with the primary DRXgroup, the UE need not monitor a physical downlink control channel(PDCCH) associated with the primary DRX group, and instead may remain ina sleep mode or a low power mode.

In some aspects, when the flag is disabled, selectively transmitting theCSI associated with the secondary DRX group in the uplink communicationassociated with the primary DRX group may include skipping a measurementoccasion associated with determining the CSI, as described above, and/orrefraining from transmitting the CSI (e.g., if the CSI was alreadydetermined) in the uplink communication.

In some aspects, the UE may selectively transmit the CSI in the uplinkcommunication further based at least in part on a timer. The timer mayindicate, for example, a maximum length of time after the active timeassociated with the primary DRX group that the CSI is permitted to bereported in the uplink communication. For example, the UE may start thetimer at an end of an active time associated with the primary DRX group.Next, the UE may determine that that flag is enabled, as describedabove. The UE may then determine whether the timer has expired (e.g.,whether a threshold amount of time from the end of the active timeassociated with the primary DRX group has lapsed). In this example, ifthe timer has not expired, then the UE may determine the CSI associatedwith the secondary DRX group and transmit the CSI in the uplinkcommunication associated with the primary DRX group. Conversely, if thetimer has expired, then the UE may skip a measurement occasionassociated with determining the CSI or refrain from transmitting the CSIin the uplink communication associated with the primary DRX group. Insuch a case, the UE may also disable the flag (e.g., without anindication from the base station).

In some aspects, the UE may selectively transmit the CSI in the uplinkcommunication further based at least in part on a threshold. Thethreshold may indicate, for example, a maximum number of times that CSIis permitted to be reported outside of the active time associated withthe primary DRX group. For example, the UE may maintain a counter thatindicates a number of secondary DRX group CSI transmissions outside ofan active time associated with the primary DRX group. Next, the UE maydetermine that that flag is enabled, as described above. The UE may thendetermine whether the counter has reached a threshold (e.g., whether thecounter indicates that the maximum number of secondary DRX group CSItransmissions outside of a primary DRX group active time has beenreached). In this example, if the counter has not reached the threshold,then the UE may determine the CSI associated with the secondary DRXgroup and transmit the CSI in the uplink communication associated withthe primary DRX group. Conversely, if the counter has reached thethreshold, then the UE may skip a measurement occasion associated withdetermining the CSI or refrain from transmitting the CSI in the uplinkcommunication associated with the primary DRX group. In such a case, theUE may also disable the flag (e.g., without an indication from the basestation). In some aspects, a timer and/or a threshold can be used tolimit a number of secondary DRX group CSI transmissions outside of anactive time associated with the primary DRX group, thereby conserving UEresources.

In some aspects, when the UE transmits the CSI associated with thesecondary DRX group in the uplink communication associated with theprimary DRX group, the UE may multiplex the CSI with UCI in the uplinkcommunication. For example, the UE may multiplex the CSI associated withthe secondary DRX group with hybrid automatic repeat requestacknowledgment (HARQ-ACK) feedback, with CSI associated with the primaryDRX group, or with one or more other types of UCI. Additional detailsregarding multiplexing CSI associated with the secondary DRX group withUCI are provided below.

FIG. 3B is a diagram illustrating an example associated withtransmitting CSI associated with a secondary DRX group outside of anactive time associated with a primary DRX group. At a first measurementoccasion associated with the secondary DRX group (indicated in FIG. 3Bby the black circle labeled “1”), the UE may determine that an uplinkcommunication occasion (e.g., a PUCCH occasion) associated withreporting CSI determined based at least in part on a measurement at thefirst measurement occasion is within an active time associated with theprimary DRX group. Here, the UE may skip the determination of whetherthe flag is enabled or is disabled (e.g., since in this case the CSIwould be provided during the active time associated with the primary DRXgroup), may perform a first measurement and determine first CSIassociated with the secondary DRX group, and provide the first CSI in anuplink communication associated with the primary DRX group, as indicatedin FIG. 3B.

At a second measurement occasion associated with the secondary DRX group(indicated in FIG. 3B by the black circle labeled “2”), the UE maydetermine that an uplink communication occasion associated withreporting CSI determined based at least in part on a measurement at thesecond measurement occasion is outside of an active time associated withthe primary DRX group, but is within the threshold amount of time fromthe end of the active time associated with the primary DRX group. Here,the UE may determine whether the flag is enabled or is disabled (e.g.,since in this case the CSI would be provided outside of the active timeassociated with the primary DRX group). In this example, the UEdetermines that the flag is enabled. As further shown, the UE mayperform a second measurement and determine second CSI associated withthe secondary DRX group, and provide the second CSI in an uplinkcommunication associated with the primary DRX group. Here, a wake-up isperformed at a PUCCH occasion in association with transmitting thesecond CSI in the uplink communication associated with the primary DRXgroup.

At a third measurement occasion associated with the secondary DRX group(indicated in FIG. 3B by the black circle labeled “3”), the UE maydetermine that the third measurement occasion is outside of an activetime associated with the primary DRX group. Thus, the UE may determinewhether the flag is enabled or is disabled (e.g., since in this case theCSI would be provided outside of the active time associated with theprimary DRX group). In this example, the UE determines that the flag isenabled. As further shown, the UE may perform a third measurement anddetermine third CSI associated with the secondary DRX group, and providethe third CSI in an uplink communication associated with the primary DRXgroup. Here, a wake-up is performed at a PUCCH occasion in associationwith transmitting the third CSI in the uplink communication associatedwith the primary DRX group.

At a fourth measurement occasion associated with the secondary DRX group(indicated in FIG. 3B by the white circle labeled “4”), the UE maydetermine that the fourth measurement occasion is outside of an activetime associated with the primary DRX group. Thus, the UE may determinewhether the flag is enabled or is disabled (e.g., since in this case theCSI would be provided outside of the active time associated with theprimary DRX group). In this example, the UE determines that the flag isenabled. Assume for the purposes of the fourth measurement occasionthat, at the end of the active time associated with the primary DRXgroup, the UE started a timer associated with a maximum length of timeafter the active time that the CSI is permitted to be reported in theprimary DRX group. Here, the UE may determine whether the timer hasexpired. In this example, as indicated in FIG. 3B, the UE determinesthat the timer has expired, and skips the fourth measurement occasion(e.g., the UE refrains from performing a measurement associated withdetermining the fourth CSI). The UE may also disable the flag based atleast in part on the expiration of the timer.

As indicated above, FIGS. 3A and 3B are provided as examples. Otherexamples may differ from what is described with respect to FIGS. 3A and3B.

FIG. 4 is a diagram illustrating an example associated with cross-DRXgroup CSI reporting, in accordance with the present disclosure. In theexample associated with FIG. 4 , a UE (e.g., a UE 120) is configured touse a primary DRX group (e.g., one or more component carriers in FR1)associated with a primary DRX configuration and a secondary DRX group(e.g., one or more component carriers in FR2) associated with asecondary DRX configuration. Further, the primary DRX group and thesecondary DRX group are associated with a single PUCCH configuration(e.g., a PUCCH configuration that indicates resources in the primary DRXgroup that are to be used for providing uplink control information).

As shown in FIG. 4 by reference 402, the UE may determine that CSIassociated with the secondary DRX group is to be multiplexed with UCIoutside of an active time associated with the primary DRX group. In someaspects, the UE may be configured such that the UE is required tomultiplex CSI with UCI outside of an active time associated with theprimary DRX group (e.g., rather than being up to UE implementation).

As shown by reference 404, the UE may transmit an uplink communicationin a PUCCH associated with the primary DRX group based at least in parton determining that the CSI is to be multiplexed with UCI outside of theactive time associated with the primary DRX group. Here, the uplinkcommunication includes at least the CSI associated with the secondaryDRX group. In some aspects, the uplink communication may be transmittedduring an active time associated with the secondary DRX group. Thus, insome aspects, CSI associated with the secondary DRX group can bereported if there is other overlapping UCI outside of an active timeassociated with the primary DRX group and during an active timeassociated with the secondary DRX group (regardless of whether a flagassociated with providing secondary DRX group CSI outside of an activetime associated with the primary DRX group).

In some aspects, the CSI associated with the secondary DRX group ismultiplexed with the UCI in the uplink communication. In some aspects,the UCI with which the CSI associated with the secondary DRX group ismultiplexed may include HARQ-ACK feedback.

Additionally, or alternatively, the UCI with which the CSI associatedwith the secondary DRX group is multiplexed may include CSI associatedwith the primary DRX group. In such a case, the CSI associated with theprimary DRX group may be CSI determined based at least in part on a mostrecent measurement during an active time associated with the primary DRXgroup.

In some aspects, the UE may selectively multiplex the CSI associatedwith the secondary DRX group with the CSI associated with the primaryDRX group in the uplink communication. For example, since the UE doesnot measure CSI on the primary DRX group outside of an active timeassociated with the primary DRX group, the UE may be permitted to omitprimary DRX group CSI from the uplink communication outside of theactive time associated with the primary DRX group. However, there can bepotential misalignment of DRX timers between the UE and the basestation. For example, the base station may believe the primary DRX groupto be in an active time and, therefore, may expect primary DRX group CSIfrom the UE. However, the UE may actually be outside of an active timeassociated with the primary DRX group and, therefore, may not provideprimary DRX group CSI in the uplink communication. In such a case, dueto the DRX timer misalignment, the base station may fail to decode theuplink communication (e.g., since the base station expects primary DRXgroup CSI but the UE does not provide primary DRX group CSI). To addressthis issue, the UE may in some aspects be configured or indicated toalways include primary DRX group CSI (e.g., CSI determined based atleast in part on a most recent measurement during an active timeassociated with the primary DRX group) in the uplink communication.Here, the primary DRX group CSI is multiplexed with the secondary DRXgroup CSI in the uplink communication, and the base station cansuccessfully decode the uplink communication even in the case of a DRXtimer misalignment. Alternatively, to address the DRX timer misalignmentissue, the UE may in some aspects be configured or indicated (e.g., bythe base station) to omit primary DRX group CSI from the uplinkcommunication and report only secondary DRX group CSI. In this case, thebase station may perform blind decoding under two hypotheses: (1) thatprimary DRX group CSI is multiplexed with secondary DRX group CSI in theuplink communication, and (2) that primary DRX group CSI is notmultiplexed with secondary DRX group CSI in the uplink communication.Thus, the base station can successfully decode the uplink communicationeven when primary DRX group CSI is not multiplexed with the secondaryDRX group CSI.

Notably, HARQ-ACK feedback and primary DRX group CSI are provided asexamples of UCI and, in some aspects, the UCI with which the CSIassociated with the secondary DRX group is multiplexed may include oneor more other types of UCI.

As indicated above, FIG. 4 is provided as an example. Other examples maydiffer from what is described with respect to FIG. 4 .

FIG. 5 is a diagram illustrating an example process 500 performed, forexample, by a UE, in accordance with the present disclosure. Exampleprocess 500 is an example where the UE (e.g., UE 120 and/or the like)performs operations associated with cross-DRX group CSI reporting.

As shown in FIG. 5 , in some aspects, process 500 may includedetermining whether a flag is enabled or is disabled, the flagindicating whether CSI associated with a secondary DRX group ispermitted to be transmitted outside of an active time associated with aprimary DRX group (block 510). For example, the UE (e.g., using receiveprocessor 258, transmit processor 264, controller/processor 280, memory282, and/or the like) may determine whether a flag is enabled or isdisabled, the flag indicating whether CSI associated with a secondaryDRX group is permitted to be transmitted outside of an active timeassociated with a primary DRX group, as described above.

As further shown in FIG. 5 , in some aspects, process 500 may includeselectively transmitting the CSI associated with the secondary DRX groupin an uplink communication associated with the primary DRX group basedat least in part on whether the flag is enabled or is disabled (block520). For example, the UE (e.g., using receive processor 258, transmitprocessor 264, controller/processor 280, memory 282, and/or the like)may selectively transmit the CSI associated with the secondary DRX groupin an uplink communication associated with the primary DRX group basedat least in part on whether the flag is enabled or is disabled, asdescribed above.

Process 500 may include additional aspects, such as any single aspect orany combination of aspects described below and/or in connection with oneor more other processes described elsewhere herein.

In a first aspect, the uplink communication comprises a PUCCH, and theprimary DRX group and the secondary DRX group are associated with asingle PUCCH configuration.

In a second aspect, alone or in combination with the first aspect, aconfiguration of the flag is at least one of: on a per-UE basis, or on aper-DRX group basis.

In a third aspect, alone or in combination with one or more of the firstand second aspects, a configuration of the flag or an indicationassociated with enabling or disabling the flag is received via at leastone of: radio resource control signaling, a medium access controlcontrol element, or downlink control information.

In a fourth aspect, alone or in combination with one or more of thefirst through third aspects, the flag is configured on the UE based atleast in part on UE capability information provided by the UE.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the flag is configured on the UE based at leastin part on a UE request transmitted by the UE.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, when the flag is enabled, selectivelytransmitting the CSI associated with the secondary DRX group in theuplink communication associated with the primary DRX group includestransmitting the CSI in the uplink communication based at least in parton determining that the secondary DRX group is in an active time, theCSI being transmitted during an active time associated with thesecondary DRX group.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, a wake-up is performed at a PUCCH occasionin association with transmitting the CSI in the uplink communication.

In an eighth aspect, alone or in combination with one or more of thefirst through seventh aspects, when the flag is disabled, selectivelytransmitting the CSI associated with the secondary DRX group in theuplink communication associated with the primary DRX group includes atleast one of: skipping a measurement occasion associated withdetermining the CSI, or refraining from transmitting the CSI in theuplink communication.

In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, the CSI is selectively transmitted in the uplinkcommunication further based at least in part on a timer that indicates amaximum length of time after the active time associated with the primaryDRX group that the CSI is permitted to be reported in the uplinkcommunication.

In a tenth aspect, alone or in combination with one or more of the firstthrough ninth aspects, the CSI is selectively transmitted in the uplinkcommunication based at least in part on a threshold that indicates amaximum number of times that CSI is permitted to be reported outside ofthe active time associated with the primary DRX group.

In an eleventh aspect, alone or in combination with one or more of thefirst through tenth aspects, the CSI associated with the secondary DRXgroup is multiplexed with UCI.

In a twelfth aspect, alone or in combination with one or more of thefirst through eleventh aspects, the UCI includes at least one of: hybridautomatic repeat request acknowledgment feedback, or CSI associated withthe primary DRX group.

Although FIG. 5 shows example blocks of process 500, in some aspects,process 500 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 5 .Additionally, or alternatively, two or more of the blocks of process 500may be performed in parallel.

FIG. 6 is a diagram illustrating an example process 600 performed, forexample, by a UE, in accordance with the present disclosure. Exampleprocess 600 is an example where the UE (e.g., UE 120 and/or the like)performs operations associated with cross-DRX group CSI reporting.

As shown in FIG. 6 , in some aspects, process 600 may includedetermining that CSI associated with a secondary DRX group is to bemultiplexed with UCI outside of an active time associated with a primaryDRX group (block 610). For example, the UE (e.g., using receiveprocessor 258, transmit processor 264, controller/processor 280, memory282, and/or the like) may determine that CSI associated with a secondaryDRX group is to be multiplexed with UCI outside of an active timeassociated with a primary DRX group, as described above.

As further shown in FIG. 6 , in some aspects, process 600 may includetransmitting an uplink communication in a PUCCH associated with theprimary DRX group based at least in part on determining that the CSI isto be multiplexed with UCI outside of the active time associated withthe primary DRX group (block 620). For example, the UE (e.g., usingreceive processor 258, transmit processor 264, controller/processor 280,memory 282, and/or the like) may transmit an uplink communication in aPUCCH associated with the primary DRX group based at least in part ondetermining that the CSI is to be multiplexed with UCI outside of theactive time associated with the primary DRX group, as described above.In some aspects, the uplink communication includes at least the CSIassociated with the secondary DRX group.

Process 600 may include additional aspects, such as any single aspect orany combination of aspects described below and/or in connection with oneor more other processes described elsewhere herein.

In a first aspect, the uplink communication is transmitted during anactive time associated with the secondary DRX group.

In a second aspect, alone or in combination with the first aspect, theCSI associated with the secondary DRX group is multiplexed with UCI inthe uplink communication.

In a third aspect, alone or in combination with one or more of the firstand second aspects, the UCI in the uplink communication includes hybridautomatic repeat request acknowledgment feedback.

In a fourth aspect, alone or in combination with one or more of thefirst through third aspects, the UCI in the uplink communicationincludes CSI associated with the primary DRX group.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the CSI associated with the primary DRX group isassociated with a most recent measurement during the active timeassociated with the primary DRX group.

In a sixth aspect, alone or in combination with one or more of the firstthrough fifth aspects, process 600 includes selectively multiplexing theCSI associated with the secondary DRX group with CSI associated with theprimary DRX group in the uplink communication.

Although FIG. 6 shows example blocks of process 600, in some aspects,process 600 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 6 .Additionally, or alternatively, two or more of the blocks of process 600may be performed in parallel.

The following provides an overview of some Aspects of the presentdisclosure:

Aspect 1: A method of wireless communication performed by a userequipment (UE), comprising: determining whether a flag is enabled or isdisabled, the flag indicating whether channel state information (CSI)associated with a secondary discontinuous reception (DRX) group ispermitted to be transmitted outside of an active time associated with aprimary DRX group; and selectively transmitting the CSI associated withthe secondary DRX group in an uplink communication associated with theprimary DRX group based at least in part on whether the flag is enabledor is disabled.

Aspect 2: The method of Aspect 1, wherein the uplink communicationcomprises a physical uplink control channel (PUCCH), and the primary DRXgroup and the secondary DRX group are associated with a single PUCCHconfiguration.

Aspect 3: The method of any of Aspects 1-2, wherein a configuration ofthe flag is at least one of: on a per-UE basis, or on a per-DRX groupbasis.

Aspect 4: The method of any of Aspects 1-3, wherein a configuration ofthe flag or an indication associated with enabling or disabling the flagis received via at least one of: radio resource control signaling, amedium access control control element, or downlink control information.

Aspect 5: The method of any of Aspects 1-4, wherein the flag isconfigured on the UE based at least in part on UE capability informationprovided by the UE.

Aspect 6: The method of any of Aspects 1-5, wherein the flag isconfigured on the UE based at least in part on a UE request transmittedby the UE.

Aspect 7: The method of any of Aspects 1-6, wherein, when the flag isenabled, selectively transmitting the CSI associated with the secondaryDRX group in the uplink communication associated with the primary DRXgroup includes transmitting the CSI in the uplink communication based atleast in part on determining that the secondary DRX group is in anactive time, wherein the CSI is transmitted during an active timeassociated with the secondary DRX group.

Aspect 8: The method of Aspect 7, wherein a wake-up is performed at aphysical uplink control channel occasion in association withtransmitting the CSI in the uplink communication.

Aspect 9: The method of any of Aspects 1-8, wherein, when the flag isdisabled, selectively transmitting the CSI associated with the secondaryDRX group in the uplink communication associated with the primary DRXgroup includes at least one of: skipping a measurement occasionassociated with determining the CSI, or refraining from transmitting theCSI in the uplink communication.

Aspect 10: The method of any of Aspects 1-9, wherein the CSI isselectively transmitted in the uplink communication further based atleast in part on a timer that indicates a maximum length of time afterthe active time associated with the primary DRX group that the CSI ispermitted to be reported in the uplink communication.

Aspect 11: The method of any of Aspects 1-10, wherein the CSI isselectively transmitted in the uplink communication further based atleast in part on a threshold that indicates a maximum number of timesthat CSI is permitted to be reported outside of the active timeassociated with the primary DRX group.

Aspect 12: The method of any of Aspects 1-11, wherein the CSI associatedwith the secondary DRX group is multiplexed with uplink controlinformation (UCI).

Aspect 13: The method of Aspect 12, wherein the UCI includes at leastone of: hybrid automatic repeat request acknowledgment feedback, or CSIassociated with the primary DRX group.

Aspect 14: A method of wireless communication performed by a userequipment (UE), comprising: determining that channel state information(CSI) associated with a secondary discontinuous reception (DRX) group isto be multiplexed with uplink control information (UCI) outside of anactive time associated with a primary DRX group; and transmitting anuplink communication in a physical uplink control channel (PUCCH)associated with the primary DRX group based at least in part ondetermining that the CSI is to be multiplexed with UCI outside of theactive time associated with the primary DRX group, wherein the uplinkcommunication includes at least the CSI associated with the secondaryDRX group.

Aspect 15: The method of Aspect 14, wherein the uplink communication istransmitted during an active time associated with the secondary DRXgroup.

Aspect 16: The method of any of Aspects 14-15, wherein the CSIassociated with the secondary DRX group is multiplexed with UCI in theuplink communication.

Aspect 17: The method of Aspect 16, wherein the UCI in the uplinkcommunication includes hybrid automatic repeat request acknowledgmentfeedback.

Aspect 18: The method of any of Aspects 16-17, wherein the UCI in theuplink communication includes CSI associated with the primary DRX group.

Aspect 19: The method of Aspect 18, wherein the CSI associated with theprimary DRX group is associated with a most recent measurement duringthe active time associated with the primary DRX group.

Aspect 20: The method of any of Aspects 14-19, further comprising:selectively multiplexing the CSI associated with the secondary DRX groupwith CSI associated with the primary DRX group in the uplinkcommunication.

Aspect 21: An apparatus for wireless communication at a device,comprising a processor; memory coupled with the processor; andinstructions stored in the memory and executable by the processor tocause the apparatus to perform the method of one or more Aspects ofAspects 1-13.

Aspect 22: A device for wireless communication, comprising a memory andone or more processors coupled to the memory, the memory and the one ormore processors configured to perform the method of one or more Aspectsof Aspects 1-13.

Aspect 23: An apparatus for wireless communication, comprising at leastone means for performing the method of one or more Aspects of Aspects1-13.

Aspect 24: A non-transitory computer-readable medium storing code forwireless communication, the code comprising instructions executable by aprocessor to perform the method of one or more Aspects of Aspects 1-13.

Aspect 25: A non-transitory computer-readable medium storing a set ofinstructions for wireless communication, the set of instructionscomprising one or more instructions that, when executed by one or moreprocessors of a device, cause the device to perform the method of one ormore Aspects of Aspects 1-13.

Aspect 26: An apparatus for wireless communication at a device,comprising a processor; memory coupled with the processor; andinstructions stored in the memory and executable by the processor tocause the apparatus to perform the method of one or more Aspects ofAspects 14-20.

Aspect 27: A device for wireless communication, comprising a memory andone or more processors coupled to the memory, the memory and the one ormore processors configured to perform the method of one or more Aspectsof Aspects 14-20.

Aspect 28: An apparatus for wireless communication, comprising at leastone means for performing the method of one or more Aspects of Aspects14-20.

Aspect 29: A non-transitory computer-readable medium storing code forwireless communication, the code comprising instructions executable by aprocessor to perform the method of one or more Aspects of Aspects 14-20.

Aspect 30: A non-transitory computer-readable medium storing a set ofinstructions for wireless communication, the set of instructionscomprising one or more instructions that, when executed by one or moreprocessors of a device, cause the device to perform the method of one ormore Aspects of Aspects 14-20.

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseforms disclosed. Modifications and variations may be made in light ofthe above disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construedas hardware and/or a combination of hardware and software. “Software”shall be construed broadly to mean instructions, instruction sets, code,code segments, program code, programs, subprograms, software modules,applications, software applications, software packages, routines,subroutines, objects, executables, threads of execution, procedures,and/or functions, among other examples, whether referred to as software,firmware, middleware, microcode, hardware description language, orotherwise. As used herein, a processor is implemented in hardware and/ora combination of hardware and software. It will be apparent that systemsand/or methods described herein may be implemented in different forms ofhardware and/or a combination of hardware and software. The actualspecialized control hardware or software code used to implement thesesystems and/or methods is not limiting of the aspects. Thus, theoperation and behavior of the systems and/or methods were describedherein without reference to specific software code—it being understoodthat software and hardware can be designed to implement the systemsand/or methods based, at least in part, on the description herein.

As used herein, satisfying a threshold may, depending on the context,refer to a value being greater than the threshold, greater than or equalto the threshold, less than the threshold, less than or equal to thethreshold, equal to the threshold, not equal to the threshold, or thelike.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of various aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification. Although each dependentclaim listed below may directly depend on only one claim, the disclosureof various aspects includes each dependent claim in combination withevery other claim in the claim set. As used herein, a phrase referringto “at least one of” a list of items refers to any combination of thoseitems, including single members. As an example, “at least one of: a, b,or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well asany combination with multiples of the same element (e.g., a-a, a-a-a,a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or anyother ordering of a, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems and may be used interchangeably with “one or more.” Further, asused herein, the article “the” is intended to include one or more itemsreferenced in connection with the article “the” and may be usedinterchangeably with “the one or more.” Furthermore, as used herein, theterms “set” and “group” are intended to include one or more items (e.g.,related items, unrelated items, or a combination of related andunrelated items), and may be used interchangeably with “one or more.”Where only one item is intended, the phrase “only one” or similarlanguage is used. Also, as used herein, the terms “has,” “have,”“having,” or the like are intended to be open-ended terms. Further, thephrase “based on” is intended to mean “based, at least in part, on”unless explicitly stated otherwise. Also, as used herein, the term “or”is intended to be inclusive when used in a series and may be usedinterchangeably with “and/or,” unless explicitly stated otherwise (e.g.,if used in combination with “either” or “only one of”).

What is claimed is:
 1. A method of wireless communication performed by auser equipment (UE), comprising: determining that channel stateinformation (CSI) associated with a secondary discontinuous reception(DRX) group is to be multiplexed with uplink control information (UCI)outside of an active time associated with a primary DRX group; andtransmitting an uplink communication in a physical uplink controlchannel (PUCCH) associated with the primary DRX group based at least inpart on determining that the CSI is to be multiplexed with UCI outsideof the active time associated with the primary DRX group, wherein theuplink communication includes at least the CSI associated with thesecondary DRX group.
 2. The method of claim 1, wherein the uplinkcommunication is transmitted during an active time associated with thesecondary DRX group.
 3. The method of claim 1, wherein the CSIassociated with the secondary DRX group is multiplexed with UCI in theuplink communication.
 4. The method of claim 3, wherein the UCI in theuplink communication includes hybrid automatic repeat requestacknowledgment feedback.
 5. The method of claim 3, wherein the UCI inthe uplink communication includes CSI associated with the primary DRXgroup.
 6. The method of claim 5, wherein the CSI associated with theprimary DRX group is associated with a most recent measurement duringthe active time associated with the primary DRX group.
 7. The method ofclaim 1, further comprising: selectively multiplexing the CSI associatedwith the secondary DRX group with CSI associated with the primary DRXgroup in the uplink communication.
 8. A non-transitory computer-readablemedium storing a set of instructions for wireless communication, the setof instructions comprising: one or more instructions that, when executedby one or more processors of a user equipment (UE), cause the UE to:determine that channel state information (CSI) associated with asecondary discontinuous reception (DRX) group is to be multiplexed withuplink control information (UCI) outside of an active time associatedwith a primary DRX group; and transmit an uplink communication in aphysical uplink control channel (PUCCH) associated with the primary DRXgroup based at least in part on determining that the CSI is to bemultiplexed with UCI outside of the active time associated with theprimary DRX group, wherein the uplink communication includes at leastthe CSI associated with the secondary DRX group.
 9. The non-transitorycomputer-readable medium of claim 8, wherein the uplink communication istransmitted during an active time associated with the secondary DRXgroup.
 10. The non-transitory computer-readable medium of claim 8,wherein the CSI associated with the secondary DRX group is multiplexedwith UCI in the uplink communication.
 11. The non-transitorycomputer-readable medium of claim 10, wherein the UCI in the uplinkcommunication includes hybrid automatic repeat request acknowledgmentfeedback.
 12. The non-transitory computer-readable medium of claim 10,wherein the UCI in the uplink communication includes CSI associated withthe primary DRX group.
 13. The non-transitory computer-readable mediumof claim 12, wherein the CSI associated with the primary DRX group isassociated with a most recent measurement during the active timeassociated with the primary DRX group.
 14. The non-transitorycomputer-readable medium of claim 8, wherein the one or moreinstructions further cause the UE to: selectively multiplex the CSIassociated with the secondary DRX group with CSI associated with theprimary DRX group in the uplink communication.
 15. A user equipment (UE)for wireless communication, comprising: one or more memories; and one ormore processors, coupled to the one or more memories, configured to:determine that channel state information (CSI) associated with asecondary discontinuous reception (DRX) group is to be multiplexed withuplink control information (UCI) outside of an active time associatedwith a primary DRX group; and transmit an uplink communication in aphysical uplink control channel (PUCCH) associated with the primary DRXgroup based at least in part on determining that the CSI is to bemultiplexed with UCI outside of the active time associated with theprimary DRX group, wherein the uplink communication includes at leastthe CSI associated with the secondary DRX group.
 16. The UE of claim 15,wherein the uplink communication is transmitted during an active timeassociated with the secondary DRX group.
 17. The UE of claim 15, whereinthe CSI associated with the secondary DRX group is multiplexed with UCIin the uplink communication.
 18. The UE of claim 17, wherein the UCI inthe uplink communication includes hybrid automatic repeat requestacknowledgment feedback.
 19. The UE of claim 17, wherein the UCI in theuplink communication includes CSI associated with the primary DRX group.20. The UE of claim 19, wherein the CSI associated with the primary DRXgroup is associated with a most recent measurement during the activetime associated with the primary DRX group.
 21. The UE of claim 15,wherein the one or more processors are further configured to:selectively multiplex the CSI associated with the secondary DRX groupwith CSI associated with the primary DRX group in the uplinkcommunication.
 22. An apparatus for wireless communication, comprising:means for determining that channel state information (CSI) associatedwith a secondary discontinuous reception (DRX) group is to bemultiplexed with uplink control information (UCI) outside of an activetime associated with a primary DRX group; and means for transmitting anuplink communication in a physical uplink control channel (PUCCH)associated with the primary DRX group based at least in part ondetermining that the CSI is to be multiplexed with UCI outside of theactive time associated with the primary DRX group, wherein the uplinkcommunication includes at least the CSI associated with the secondaryDRX group.
 23. The apparatus of claim 22, wherein the uplinkcommunication is transmitted during an active time associated with thesecondary DRX group.
 24. The apparatus of claim 22, wherein the CSIassociated with the secondary DRX group is multiplexed with UCI in theuplink communication.
 25. The apparatus of claim 24, wherein the UCI inthe uplink communication includes hybrid automatic repeat requestacknowledgment feedback.
 26. The apparatus of claim 24, wherein the UCIin the uplink communication includes CSI associated with the primary DRXgroup.
 27. The apparatus of claim 26, wherein the CSI associated withthe primary DRX group is associated with a most recent measurementduring the active time associated with the primary DRX group.
 28. Theapparatus of claim 22, further comprising: means for selectivelymultiplexing the CSI associated with the secondary DRX group with CSIassociated with the primary DRX group in the uplink communication.